When making summer clothing, DTY (stretch yarn) and FDY (filament) are two types of polyester yarns that are more commonly used. They have their own characteristics. Which one is more suitable depends on the specific needs and design characteristics of the clothing. The following are the advantages of both in making summer clothing:

DTY (stretch yarn)
Good elasticity: DTY has excellent elasticity and stretchability, can fit the human body curve well, provide a comfortable wearing experience when the human body is moving, and will not cause tightness due to body movement. It is especially suitable for making some tight or slim-fitting summer clothing, such as yoga clothes, sports vests, etc.
Soft and fluffy feel: Its fiber is fluffy and soft to the touch. It feels comfortable when in contact with the skin and will not irritate the skin. It can bring a good skin-friendly feeling to the wearer and increase the comfort of summer clothing.
Improved breathability and hygroscopicity: After special treatment, DTY can have better breathability and certain hygroscopicity, allowing air to circulate in the fabric, helping sweat to be discharged, keeping the body dry and reducing the feeling of stuffiness.

FDY (filament)
Good gloss: FDY has different gloss effects such as glossy, glossy, semi-glossy, and matte. You can choose the appropriate gloss according to the design requirements to add a sense of fashion and luxury to summer clothing. It is often used to make some glossy dresses, shirts, etc.
Smooth surface: Its single fibers are parallel, smooth and uniform, making the surface of the fabric flat and smooth. It is not only comfortable to wear, but also has good wrinkle resistance. It is not easy to have obvious wrinkles in summer wear, keeping the clothing neat and beautiful.
Easy to care: FDY material clothing is easy to dry after washing, not easy to deform, and has good wear resistance. It can withstand frequent wearing and washing in summer and is easy to care for daily.